NDLI: A Novel Universal Control Scheme for Transcutaneous Energy Transfer (TET) Applications

Content Provider	IEEE Xplore Digital Library
Author	Friedmann, J. Groedl, F. Kennel, R.
Copyright Year	2013
Abstract	A key feature of future active implants will include wireless transcutaneous energy transfer (TET). A novel closed-loop control scheme is presented here for coupled resonant tank circuits that is capable of providing stable and maximally efficient power transfer under various load and disturbance conditions as well as for varying implants. The control algorithm consists of four cascaded control loops using capacitance, frequency, and voltage as the primary control variables. The innermost, D, control loop uses the primary side voltage to control the secondary side current. The C-loop uses the excitation frequency to set the optimal working point for the TET system and the secondary side tank behavior. The secondary side tank may either act as voltage or current source dependent upon the frequency setting of the primary side. The TETs transfer function is shaped by setting the primary capacitance in the B-control loop, determining the performance and transmission efficiency. The exact positioning of primary and secondary coils is determined by an online measurement of the mutual inductance M. In this paper, the D-control loop has been both simulated and realized, for the A-C loops a proof of concept is shown.
Starting Page	296
Ending Page	305
Page Count	10
File Size	2690754
File Format	PDF
ISSN	21686777
Volume Number	3
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Coils Implants Couplings Voltage control Capacitance Wireless communication Magnetic resonance transcutaneous energy transfer (TET) Active medical implant control
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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